The 'democratic peace theory' holds that democracies rarely go to war with each other.

The Triassic period marked the first appearance of dinosaurs.

Fact #664 · History

The Manhattan Project developed the first atomic bombs during World War II.

Fact #999 · History

The United Nations was founded in 1945.

Fact #597 · History

In 1919, the Boston Police Strike left the city without law enforcement for days.

Fact #792 · History

In 1518, a dancing plague reportedly caused people to dance uncontrollably for days.

Fact #635 · History

The Tulip Mania of the 1600s is considered one of the first economic bubbles.

Fact #641 · History

Prehistoric climates were often warmer than today.

Fact #750 · History

The Megalodon lived millions of years before humans appeared.

Fact #704 · History